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Hep-74.3A
Tissue
肝臟
Disease
肝細胞癌
Synonyms
Hep-74.3, HEP-74.3a, 74.3A, 74.3a

Documents

Hep-74.3A

Cell line · Product number 400208

The Hep-74.3 hepatoma cell line is derived from a mouse liver tumor, specifically from the C3H/He mouse strain. This cell line is characterized by its hep...

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01General information

Description

Hep-74.3 肝癌細胞系源自小鼠肝臟腫瘤,具體而言來自 C3H/He 小鼠品系。該細胞系的特徵在於其源自肝細胞,此點已透過中間絲蛋白分析獲得證實。 Hep-74.3 會表達正常肝細胞特有的簡單角蛋白 K8 和 K18,同時也會以不同程度表達維曼汀和角蛋白 K19。這些蛋白質表達模式證實了該細胞系的肝細胞性質,並確認其歸類為肝癌細胞系。

Hep-74.3 細胞系呈現以上皮型態為主的形態,反映其源自肝細胞。此形態表型與其蛋白質表達模式一致。 Hep-74.3 的 DNA 指紋分析未發現任何重大結構異常,顯示其具一定程度的基因組穩定性。然而,隨著傳代次數增加,特定條帶的相對強度出現某些變化,暗示在長期培養期間存在輕微的基因組變異性。

儘管原發性小鼠肝腫瘤中未檢測到 p53 突變,但在體外傳代過程中,部分肝癌細胞系仍發現了異常。本研究針對 Hep-74.3 細胞系中的 p53 和 c-Ha-ras 基因進行了突變分析。 該細胞系在早期傳代期間未檢測到 p53 基因突變,顯示其遺傳背景穩定。此細胞系作為研究肝細胞癌的寶貴模型,有助於深入了解肝腫瘤發生背後的細胞與分子機制。

Tissue
肝臟
Disease
肝細胞癌
Synonyms
  • Hep-74.3
  • HEP-74.3a
  • 74.3A
  • 74.3a

02Classification

Organism
Mouse
Sex
Female
Growth properties
Adherent
Biosafety level
1

03Characteristics

Morphology
上皮樣
Tumourigenic
是的,在 C3H/HE 小鼠中

04Identifiers

Citation
Hep-74.3A(Cytion 型號 400208)
NCBI TaxID
10090
Cellosaurus
CVCL_5773

05Expression and susceptibility

Protein expression
角蛋白 8、角蛋白 18、維曼汀
Mutational profile
P53 野生型

06Handling and culture

Culture medium
Ham's F12,含:1.0 mM 穩定型谷氨醯胺、1.0 mM 丙酮酸鈉、1.1 g/L NaHCO₃(Cytion 產品編號 820600a)
Incubation atmosphere

37°C,5% CO₂,加濕環境。

Supplements
在培養基中加入 10% 的胎牛血清(FBS)
Dissociation reagent
Accutase
Subculturing
從貼壁細胞中移除舊培養基,並用不含鈣和鎂的PBS洗滌細胞。T25培養瓶使用3-5毫升PBS,T75培養瓶則使用5-10毫升。 接著,用 Accutase 完全覆蓋細胞,T25 培養瓶使用 1–2 毫升,T75 培養瓶則使用 2.5 毫升。將細胞於室溫下孵育 8–10 分鐘,使其脫附。 孵育後,將細胞與 10 毫升培養基輕柔混合以使其重新懸浮,然後以 300xg 離心 3 分鐘。棄去上清液,將細胞重新懸浮於新鮮培養基中,並轉移至已預先加入新鮮培養基的新培養瓶中。
Seeding density
1 × 10⁴ 個細胞/cm²
Fluid renewal
每 3 至 5 天
Post-thaw recovery
解凍後,將細胞以 5 × 10⁴ 個細胞/cm² 的密度接種於培養皿中,並讓細胞從冷凍過程中恢復,並附著至少 24 小時。
Thawing and culturing
  1. Confirm that the vial remains deeply frozen upon delivery, as cells are shipped on dry ice to maintain optimal temperatures during transit.

  2. Upon receipt, either store the cryovial immediately at temperatures below -150°C to ensure the preservation of cellular integrity, or proceed to step 3 if immediate culturing is required.

  3. For immediate culturing, swiftly thaw the vial by immersing it in a 37°C water bath with clean water and an antimicrobial agent, agitating gently for 40-60 seconds until a small ice clump remains.

  4. Perform all subsequent steps under sterile conditions in a flow hood, disinfecting the cryovial with 70% ethanol before opening.

  5. Carefully open the disinfected vial and transfer the cell suspension into a 15 ml centrifuge tube containing 8 ml of room-temperature culture medium, mixing gently.

  6. Centrifuge the mixture at 300 x g for 3 minutes to separate the cells and carefully discard the supernatant containing residual freezing medium.

  7. Gently resuspend the cell pellet in 10 ml of fresh culture medium. For adherent cells, divide the suspension between two T25 culture flasks; for suspension cultures, transfer all the medium into one T25 flask to promote effective cell interaction and growth.

  8. Adhere to established subculture protocols for continued growth and maintenance of the cell line, ensuring reliable experimental outcomes.

07Quality control and cryopreservation

Sterility

透過基於 PCR 的檢測及基於發光原理的支原體檢測方法,排除支原體污染的可能性。

為確保無細菌、真菌或酵母菌污染,每日均會對細胞培養物進行目視檢查。

Freeze medium
作為冷凍保存培養基,我們使用完全生長培養基(含 FBS)+ 10% DMSO 以確保解凍後的存活率,或使用 CM-1 (Cytion 型號 800100),該培養基含有經優化的滲透保護劑和代謝穩定劑,可提升細胞恢復率並減輕冷凍誘導的壓力。
Storage conditions

若需長期保存,請將試管置於溫度約為 −150 至 −196 °C 的氣相液氮中。僅在轉移至液氮之前,可將試管暫時存放於 −80 °C 環境中,作為短期過渡步驟。

Shipping conditions

冷凍保存的細胞系會以乾冰冷藏,並裝於經驗證的隔熱包裝中,包裝內含有足夠的冷媒,以確保在運輸過程中溫度維持在約 −78 °C。收到貨物後,請立即檢查容器,並盡快將試管轉移至適當的儲存場所。

08Donor

Breed / subspecies
C57BL/6J
Donor age
成人